Public Transport Analysis Environment Settings

Feature Description

The Public Transport Analysis Environment Settings window is used to configure global parameters for public transport analysis. The "Environment Settings" checkbox in the Execute group controls the visibility of the environment settings panel.

These settings are prerequisites for public transport data inspection and analysis. Configurable parameters include station environment, line environment, transport relationships, and others such as station snap tolerance and merge tolerance.

Public Transport Line

Configure line dataset information including line dataset, line ID field, name field, and auxiliary fields. Fields marked with * are mandatory.

ID Field Description Type
1 Line Name Field Specifies the line name field (mandatory). Missing field will throw an exception. Mandatory
2 Line ID Field Specifies the line ID field (mandatory, int/long type). Type mismatch will throw an exception. Mandatory
3 Line Alias Field Specifies the line alias field. Optional
4 Line Type Field Defines line types: 0=bus, 1=subway, 2=trolleybus (integer required). Optional
5 Speed Field Specifies vehicle speed field. Optional
6 Line Length Field Specifies line length field. Optional
7 First Time Field Specifies first departure time field. Optional
8 Last Departure Time: Specifies last departure time field. Optional
9 Interval Field Specifies line interval field. Optional

Public Transport Station

Configure station dataset parameters including station dataset, station ID field, and name field. A properly configured StopSetting object is required for data integrity.

ID Field Description Type
1 Station Dataset Specifies point-type station dataset (mandatory). Mandatory
2 Station Name Field Specifies station name field (mandatory). Mandatory
3 Station Alias Field Specifies station alias field. Optional
4 Station ID Field Specifies station ID field (int/long type, mandatory). Mandatory

Relation

Configure station-line relationship dataset. Correct relation dataset with valid ID fields is required for data integrity.

ID Field Description Type
1 Relation Datasouce Specifies datasource containing relation dataset. Mandatory
2 Relation Dataset Specifies attribute table-type relation dataset. Mandatory
3 Line ID Field Specifies line ID field in relation dataset (int/long type). Mandatory
4 Station ID Field Specifies station ID field in relation dataset (int/long type). Mandatory
5 Station Order Fields Specifies station sequence number field in lines. Optional

Entrance/Exit

Configure optional station-entrance relationships based on research needs.

ID Field Description Type
1 Exit Dataset Specifies line-type exit relation dataset. Optional
2 Exit Name Field Specifies exit name field in relation dataset. Optional
3 Exit Name PY Field Specifies exit name pinyin field in relation dataset. Optional
4 Exit ID Field Specifies exit ID field (int/long type). Optional
5 Station ID Field Specifies station ID field in exit dataset (int/long type). Optional

Walk

Walking distance is calculated using line objects. Euclidean distance is used if no parameters are set.

ID Field Description Type
1 Walk Dataset Specifies network dataset for actual walking routes during transfers. Optional
2 Start Node ID Specifies start node ID field in network dataset. Optional
3 End Node ID Field Specifies end node ID field in network dataset. Optional
4 Node ID Field Specifies node ID field in network dataset. Optional
5 Edge ID Field Specifies edge ID field in network dataset. Optional

Tolerance

  • Station Snap Tolerance: Determines if stations lie on lines. System first verifies through relation dataset, then excludes stations beyond this tolerance.

    Example: Stations 107 and 106 are associated with Line 1 in relations. With 5m tolerance, if Station 107 is 10m from Line 1 in spatial data, it will be excluded. Data errors or measurement inaccuracies may cause this.

    Figure 1: Station Snap Tolerance
  • Max Walking Distance: Maximum acceptable walking distance for transfers. Solutions exceeding this threshold will be discarded.
  • Unit: Set measurement units via dropdown menu.

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